US3085044A - Aryl alkylphosphonothioates - Google Patents

Aryl alkylphosphonothioates Download PDF

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Publication number
US3085044A
US3085044A US100502A US10050261A US3085044A US 3085044 A US3085044 A US 3085044A US 100502 A US100502 A US 100502A US 10050261 A US10050261 A US 10050261A US 3085044 A US3085044 A US 3085044A
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weight
nitrophenyl
water
tolyl
phosphonothioate
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John P Chupp
Peter E Newallis
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Monsanto Chemicals Ltd
Monsanto Chemical Co
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Monsanto Chemicals Ltd
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Priority to NL276759D priority Critical patent/NL276759A/xx
Priority to NL127250D priority patent/NL127250C/xx
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Priority to US100502A priority patent/US3085044A/en
Priority to FR892655A priority patent/FR1321686A/fr
Priority to GB12796/62A priority patent/GB948999A/en
Priority to DK152462AA priority patent/DK105008C/da
Priority to DEM58279A priority patent/DE1226363B/de
Priority to BR137691/62A priority patent/BR6237691D0/pt
Priority to DEM52365A priority patent/DE1182659B/de
Priority to BE615988D priority patent/BE615988A/fr
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
    • A01N57/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing aromatic radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/40—Esters thereof
    • C07F9/4071—Esters thereof the ester moiety containing a substituent or a structure which is considered as characteristic
    • C07F9/4084—Esters with hydroxyaryl compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/26—Electrographic processes using a charge pattern for the production of printing plates for non-xerographic printing processes
    • G03G13/28—Planographic printing plates
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • G03G9/125—Developers with toner particles in liquid developer mixtures characterised by the liquid
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/16—Developers not provided for in groups G03G9/06 - G03G9/135, e.g. solutions, aerosols
    • G03G9/18—Differentially wetting liquid developers

Definitions

  • R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms (e.g. phenyl, tolyl, xylyl, ethylphenyl, cumyl, tert-butylphenyl, and the various isomeric forms thereof).
  • R will be zero, R will :be methyl or ethyl but usually methyl, and R will be phenyl or tolyl but usually phenyl.
  • the preferred method of this invention comprises reacting a nitrophenol of the formula EEO-Q H2) DH wherein n has the aforedescribed significance with an alkylphosphonohalidothionate of the formula wherein R and R have the aforedescribed significance and wherein Z is a halogen of atomic number in the range of 16 to 36 (i.e. chlorine or bromine, usually chlorine) in the presence of hydrogen halide scavenging agent (e.g.
  • the scavenging agent can be added at the beginning of the reaction or throughout the course of the reaction. While a wide range of reaction temperatures can be employed provided the system is fluid (i.e. a reaction temperature above the freezing point of the system up to and including the boiling point of the system) it is preferred to employ a reaction temperature in the range of about 20 C. to about 120 C.
  • an inert organic solvent e.g. benzene, xylene, toluene, acetone, butanone, dioxane, etc.
  • an inert organic solvent e.g. benzene, xylene, toluene, acetone, butanone, dioxane, etc.
  • the respective react-ants will be employed in substantially equimolecular proportions.
  • nitrophenol reactants of the preferred process of this invention are Z-nitrophenol, S-nitrophenol,
  • alkylphosphonohalidothionate reactants of the preferred process of this invention are O-phenyl methylphosphonochloridothionate,
  • Example 1 To a suitable reaction vessel equipped with a thermometer, agitator and reflux condenser is charged approximately 1'32 par-ts by Weight of benzene, approximately? .0 parts by weight (substantially 0.05 mole) of 4-nitrophenol, approximately 6.1 parts 'by weight (substantially 0.06 mole) of triethylamine, and approximately 10.4 parts by weight (substantially 0.05 mole) of O -phenylmethylphosphonochloridothionate. While agitating the mixture is heated up to the reflux temperature and then refluxed for 5 hours. The reaction mass is then cooled to room temperature and then quenched with water. The organic layer is separated and washed first with aqueous 3% sodium carbonate and then with water. The sowashed solution is then stripped of volatiles under vacuurn. The residue, a white solid melting at 78.5-80 C., is O-phenyl O-(4-nitrophenyl) methylphosphonothioate;
  • Example 11 Employing the procedure of Example I but replacing 4nitrophenol with an equimolecular amount of 2-nitrophenol there is obtained O-phenyl O4(2-nitropheny1) methylphosphonothioa-te which is insoluble in water;
  • ExampleI II To a suitable reaction vessel equipped with a thermometer, agitator and reflux condenser is charged approximately 176 parts by weight of benzene, approximately 7.0 parts by weight (substantially 0.05 mole) of 4-nitrophenol, approximately 6.1 parts by weight substantially 0.06 mole) of triethylamine, and approximately 11.0 parts by weight (substantially 0.05 mole) of O-(o-tolyl) methylphosphonochloridothionate. While agitating the mixture is heated up to the reflux temperature and then refluxed for 5 hours. The reaction mass is -then' cooled to room temperature and then quenchediwith water. The organic layer is separated and washed first with aqueous- 3% sodium carbonate and then with water.
  • Example IV Employing the procedure of Example III but replacing O-(o-tolyl) -methylphosphonochloridothionate with an equimolecular amount of O-(o-tolyl) ethylphosphonobromidothionate there is obtained O-(O-tolyl) O-(4-nitrophenyl)ethylphosphonothioate which is insoluble in water.
  • Example V ing the mixture is heated up to the reflux temperature and then refluxed for hours. The reaction mass is then cooled to room temperature and then quenched with water. The organic layer is separated and washed first with aqueous 3% sodium carbonate and then with water. The so-washed solution is then stripped of volatiles under vacuum. The residue, a brown oil which solidilied on standing (M.P. 57-59 C.), is O-(m-tolyl) O-(4- nitrophenyl) methylphosphonothioate.
  • Example VI Employing the procedure of Example V but replacing 4-nitrophenol with an equimolecular amount of 3-methyl- 4-nitrophenol there is obtained O-(m-tolyl) O-(3-methyl- 4-nitrophenyl) methylphosphonothioate which is insoluble in water.
  • Example VII To a suitable reaction vessel equipped with a thermometer, agitator and reflux condenser is charged approximately 176 parts by Weight of benzene, approximately 7.0 parts by weight (substantially 0.05 mole) of 4-nitrophenol, approximately 6.1 parts by weight (substantially 0.06 mole) of triethylamine, and approximately 10.4 parts by weight (substantially 0.05 mole) of O-(ptolyl) methylphosphonochloridothionate. While agitating the mixture is heated up tothe reflux temperature and then refluxed for 6 hours. The reaction mass is then cooled to room temperature and then quenched with water. The organic layer is separated and washed first with aqueous 3% sodium. carbonate and then with water.
  • Example VIII Employing the procedure of Example VII but replacing O-(p-tolyl) methylphosphonochloridothionate with an equimolecular amount of O-(m-tert.-butylphenyl) isoamylphosphonobromidothionate there is obtained O-(mtert.-butylphenyl) O-(4-nit-rophenyl) isoamylphosphonothioate.
  • Example IX To a suitable reaction vessel equipped with a thermometer, agitator and reflux condenser is charged approximately 176 parts by weight of benzene, approxirnately 7.0 parts by weight (substantially 0.05 mole) of 4-nitrophenol, approximately 6.1 parts by weight (substantially 0.06 mole) of triethylamine, and approximately 11.5 parts by weight (substantially 0.05 mole) of O- phenyl ethylphosphonochloridothionate. While agitating the mixture is heated up to the reflux temperature and then refluxed for 6.5 hours. The reaction mass is then cooled to room temperature and then quenched with water. The organic layer is separated and washed first with aqueous 3% sodium carbonate and then with water.
  • Example X Employing the procedure of Example IX but replacing 4-nitrophenol with an equimolecular amount of 2- nit-r-ophenol there is obtained O-phenyl O-(Z-nitrophenyl) ethylphosphonothioate which is insoluble in water.
  • Example X To a suitable reaction vessel equipped with a thermometer, agitator. and reflux condenser is charged approximately 220 parts by weight of benzene, approx-irnately 6.1 parts by weight of o-ethylphenol, approximately 5.1 parts by weight of triethylamine, and approximately12.6 parts by weight of O-(4,nitrophenyl) methylphosphonochloridothionate. While agitating the mixture is heated up to the reflux temperature and then refluxed for 4 hours. The reaction mass is then cooled to room temperature and then quenched with water. The organic layer is separated and washed first with aqueous 3% sodium carbonate and then with water. The so-washed solution is then stripped of volatiles under vacuum.
  • Example XII Employing the procedure of Example XI but replacing o-ethylphenol with an equimolecular amount of omethylphenol (i.e. o-cresol) there is obtained O-(oniethylphenyl) 'O-(4-nitrophenyl) methylphosphonothioate which is insoluble in water.
  • alkylphosphonothioates of this invention are isolated will vary slightly with the reactants employed and the product produced. Further purification by selective solvent extraction or by absorptive agents such as activated carbon or clays can precede the removal of the inert organic liquid or solvent when such is employed. Additionally an inert organic solvent can be added to and in the purification by absorptive agents. However, the product is generally satisfactory for insecticidal purposes without further purification.
  • alkylphosphonothioates of this invention are ticularly useful group are the O-(4-nitrophenyl) alkylphosphonothioates of the formula f wherein R is an alkyl radical containing 1 to 2 carbon atoms, and wherein R is phenyl, m-tolyl or o-tolyl.
  • insect and insecticide are used herein in their broad common usage to include spiders, mites, ticks, and like pests which are not in the strict biological sense classed as insects.
  • the usage herein conforms to the definitions provided by Congress in Public Law 104, the Federal Insecticide, Fungicide, and Rodenticide Act of 1947, Section 2, subsection h, wherein the term insec is used to refer not only to those small invertebrate animals belonging mostly to the class Insecta, comprising six-legged, usually winged forms, as beetles, bugs, bees, flies, and so forth, but also to other allied classes of arthropods whose members are Wingless and usually have more than six legs, as spiders, mites, ticks, centipedes, and wood lice.
  • a rimless, 25 x 200 mm. culture tube is rinsed with acetone and is placed in a holding block.
  • the tube is filled with 50 cc. of distilled water.
  • 0.1 cc. or 0.1 gram of the compound to be evaluated is dissolved in acetone to make a 1% by weight concentrate of the compound.
  • 0.05 ml. of this concentrate is pipetted into the culture tube containing the distilled water.
  • the tube is then stoppered with an acetone Washed rubber stopper and shaken vigorously to facilitate complete mixing.
  • Approximately 25 early fourth instar yellow fever mosquito larvae (Adesaegypti) are transferred to the tube with the aid of a pipette. The larvae are held in the test tube at room temperature for 24 hours at which time mortality observations are taken. This procedure is repeated at decreasing concentrations until a 100% kill is observed.
  • Employing the below itemized compounds 100% kills Were observed atthe indicated concentrations in parts per million:
  • a 0.25 cc. tuberculin, B-D Yale syringe is filled with this concentrate and placed in a microinjection apparatus.
  • the injector lever is pressed several times to make certain no air bubbles are trapped in the needle and the needle is wiped with filter paper to remove any excess solution.
  • the injector lever is pressed once to deliver one microliter which is applied directly to each of 12 lima bean leaf discs 0.25 inch in diameter.
  • Individual second instar southern armyworm lanvae (Prodenitz eridania) are placed on each disc and the disc encaged with a plastic cap. After 48 hours at room temperature mortality observations are made. This procedure is repeated at decreasing concentrations and until a 100% methylphosphonothioate- 0.40
  • a 1% by weight concentrate of the compound to be evaluated is prepared by dissolving the chemical in 10 ml. of acetone.
  • a 0.25 cc. tuberculin, B-D Yale syringe is filled with the concentrate and placed in a microinjection apparatus.
  • the injector lever is pressed several times to make certain that no air bubbles are trapped in the needle and the needle is wiped with filter paper to remove any excess solution.
  • the injector lever is pressed once to produce one rnicroliter which is applied directly to the ventral side of the abdomen of each of 10 plum curculio (Conolrachelus nenuphar). After application each insect is released within observation dishes and held for 24 hours at room temperature and mortality observations made at the end of that time. This procedure is repeated at decreasing concentrations until a kill is observed.
  • Employing the below itemized compounds 100% kills were observed at the indicated concentrations in micrograms per insect:
  • the phosphonothioates of this invention are useful per se in controlling a wide variety of insect pests, it is preferable that they be supplied to the pests or to the environment of the pest or pests in a dispersed form in a suitable extending agent.
  • dispersed is used in its widest possible sense.
  • particles of the phosphonothioates of this invention may be molecular in size and held in true solution in a suitable organic solvent. It means further, that the particles may be colloidal in size and distributed throughout a liquid phase. in the form of suspensions or emulsions or in the form of particles held in suspension by wetting agents.
  • It also includes particles which are distributed in a semi-solid viscous carrier such as petrolatum or soap or other ointment base in which they may be actually dissolved in the semi-solid or held in suspension in the semi-solid with the aid of suitable wetting or emulsifying agents.
  • a semi-solid viscous carrier such as petrolatum or soap or other ointment base
  • dispersed also means that the particles may be mixed with and distributed throughout a solid carrier providinga mixture in particulate form, e.g. pellets, granules, powders, or dusts.
  • dispersed also includes mixtures which are suitable for use as aerosols including solutions, suspensions, or emulsions ofthe phosphonothioates of this invention in a carrier such as dichlorodiiiuoromethane and the like fluorochloroal-kanes which boil below room temperature at atmospheric pressure.
  • a carrier such as dichlorodiiiuoromethane and the like fluorochloroal-kanes which boil below room temperature at atmospheric pressure.
  • the expression extending agent includes any and all of those substances in which the phosphonothioates of this invention are dispersed. It includes, therefore, the solvents of a true solution, the liquid phase of suspensions, emulsions or aerosols, the semisolid carrier of ointments and the solid phase of particulate solids, e.g. pellets, granules, dusts and powders.
  • concentration of the phosphonothioates of this invention employed in combatting or controlling insect pests can vary considerably provided the required dosage (i.e. toxic or lethal amount) thereof is supplied to the pests or to the environment of the pests.
  • the extending agent is a liquid or mixture of liquids (e.g. as in solutions, suspensions, emulsions, or aerosols) the concentration of the phosphonothioate employed to supply the desired dosage generally will be in the range of 0.001 to 50 percent by weight.
  • concentration of the phosphonothioate employed to supply the desired dosage generally will be in the range of 0.1 to 25 percent by weight.
  • the manufacturer must supply the agriculturist with a low-cost concentrate or spray base or particulate solid base in such form that, by merely mixing with water or solid extender (e.g. powdered clay or talc) or other low-cost material available to the agriculturist at the point of use, he will have an easily prepared insecticidal spray or particulate solid.
  • the phosphonothioate generally will be present in a concentration of to 95 percent by weight, the residue being any one or more of the well known insecticidal adjuvants, such as the various surface active agents (e.g. detergents, a soap or other emulsifying or wetting agent), surface-active clays, solvents, diluents, carrier media, adhesives, spreading agents, humec-tants, and the like.
  • organic liquids which can be used for the preparation of solutions, suspensions or emulsions of the phosphonothioates of this invention.
  • organic liquids for example, isopropyl ether, acetone, methyl ethyl ketone, dioxane, cyclohexanone, carbon tetrachloride, ethylene dichloride, tetrachloroethane, hexane, heptane and like higher liquid alkanes, hydrogenated naphthalenes, solvent naphtha, benzene, toluene, xylene, petroleum fractions (e.g. those boiling almost entirely under 400 'F.
  • organic liquid extend-ing agent at atmospheric pressure and having a flash point above about 80 F., particularly kerosene), mineral oils having an unsulfonatable residue above about 80 percent and preferably above about 90 percent.
  • organic liquid extend-ing agent a portion of same can be replaced by such low molecular Weight aliphatic hydrocarbons as dipentene, diisobutylene, propylene trimer, and the like or suitable polar organic liquids such as the aliphatic ethers and the aliphatic ketones containing not more than about carbon atoms as exemplified by acetone, methyl ethyl ketone, diisobutyl ketone, dioxane, isopropyl ether, and the like.
  • the phosphonothioates of this invention are to be supplied to the insect pests or to the environment of the pests as aerosols, it is convenient to dissolve them in a suitable solvent and disperse the resulting solution in dichlorodifluoromethane or like chlorofluoroalkane which boils below room temperature at atmospheric pressure.
  • the phosphonothioates of this invention are preferably supplied to the insect pests or to the environment of the insect pests in .the form of emulsions .or suspensions.
  • Embodiments or suspensions are prepared by dispersing the phosphonothioate of this invention either per se or in the form of an organic solution thereof in water with the aid of a water-soluble surfactant.
  • surfactant as employed here and in the appended claims is used as in volume 11 of Schwartz, Perry and Berchs Surface Active Agents and Detergents (1958, 'Interscience Publishers,
  • emulsifying agent in place of the expression emulsifying agent to connote generically the various emulsifying agents, dispersing agents, wetting agents and spreading agents that are adapted to be admixed with the active compounds of this invention in order to secure better wetting and spreading of the active ingredients in the water vehicle or carrier in which they are insoluble through lowering the surface tension of the water (see also Erear, Chemistry of Insecticides, Fungicides and Herbicides, second edition, page 280).
  • surfactants include the well-known capillary-active substances which may be an anion-active (or anionic), cation active (or cationic), or non-ionizing (or non-ionic) which are described in detail in volumes I and II of Schwartz, Perry and Berchs Surface Active Agents and Detergents (195 8, Interscience Publishers, Inc., New York) and also in the November 1947 issue of Chemical Industries (pages 811824) in an article entitled Synthetic Detergents by John W. McCutcheon, and also in the July, August, September and October 1952 issues of Soap and Sanitary Chemicals under the title Synthetic Detergents. The disclosures of these articles with respect to surfactan-ts, i.e.
  • the anion-active, cation-active and the nonionizing capillary active substances are incorporated in this specification by reference in order to avoid unnecessary enlargement of this specification.
  • the preferred surfactants are the water-soluble anionic surface-active agents and the water soluble non-ionic surface-active agents set forth in U.S. 2,846,398 (issued August 5, 195 8). -In general it is preferred that a mixture of watersoluble anionic and water-soluble non-ionic surfactants be employed. 7
  • the phosphonothioa-tes of this invention can be dispersed by suitable methods (e.g. tumbling or grinding) in solid extending agents either of organic or inorganic nature and supplied to the insect pests environment in particulate form.
  • solid materials include for example, tricalcium phosphate, calcium carbonate, kaolin, bole, kieselguhr, talc, bentonite, fullers earth, pyrophyllite diatomaceous earth, calcined magnesia, volcanic ash, sulfur and the like inorganic solid materials, and include, for example, such materials of organic nature as powdered cork, powdered wood, and powdered walnut shells.
  • the preferred solid carriers are the adsorbent clays, e.g.
  • the phosphonothioates of this invention can be dispersed in a semi-solid extending agent such as petroleum or soap (e.g. sodium stearate or oleate or palmitate or mixtures thereof) with or without the 31d of solubility promoters and/or surfactants or dispersmg agents.
  • a semi-solid extending agent such as petroleum or soap (e.g. sodium stearate or oleate or palmitate or mixtures thereof) with or without the 31d of solubility promoters and/or surfactants or dispersmg agents.
  • the dispersions can be provided ready for use in combatting insect pests or they can be provided in a concentrated form suitable for mixing with or dispersing in other extending agents.
  • a particularly useful concentrate is an intimate mixture of phosphonothioate of this invention with a water-soluble surfactant which lowers the surface tension of Water in the Weight proportions of 0.1 to 15 parts of surfactant with sufficient of the phosphonothioate of this invention to make 100 parts by weight.
  • a concentrate is particularly adapted to be made into a spray for combatting various forms of insect pests by the addition of water thereto.
  • Such a concentrate is an intimate mixture of parts by weight of O-phenyl O-(4-nitr0phenyl) methylphosphonothioate and 5 parts by weight of a water-soluble non-ionic surfactant such as the polyoxyethylene derivative of sorbitan monolaurate.
  • the said liquid concentrate preferably contains dissolved therein a minor amount (e.g. 0.5 to 10 percent by weight of the Weight of the new insecticidal agent) of a surfactant (or emulsifying agent), which surfactant is also water-soluble.
  • a concentrate 9 V is a solution of O-(m-tolyl) O-(4-nitrophenyl) methylphosphonothioate in benzene which solution contains dissolved therein a water-soluble polyoxyethylene glycol nonionic surfactant and a Water-soluble alkylary sulfonate anionic surfactant.
  • the anionic and nonionic surfactants are preferred.
  • the anionic surfactants the particularly preferred are the well known watersoluble alkali metal alkylaryl sulfonates as exemplified by sodium decylbenzene sulfonate and sodium dodecylbenzene sulfonate.
  • the non-ionic surfactants the particularly preferred are the water-soluble polyoxyethylene derivative of alkylphenols (particularly isooctyphenol) and the water-soluble polyoxyethylene derivatives of the monohigher fatty acid esters of hexitol anhydrides (e.g. sorbitan). These materials in general contain 15 to 30 moles of ethylene oxide per mole of the hexitol anhydride or the alkylphenol.
  • the active ingredient can be one or more of the compounds of this invention.
  • the compounds of this invention can. also be advantageously employed in combination with other pesticides, including for example, nematocides, bactericides, and herbicides. In this manner it is possible .to obtain mixtures which are effective against a wide variety of pests and other forms of noxious life.
  • the phosphonothioates of this invention either per se or compositions comprising same are supplied to the insect pests or to their environment in a lethal or toxic amount.
  • This can be done by dispersing the new insecticidal agent or insecticidal composition comprising same in, on or over an infested environment or in, on or over an environment the insect pests frequent, e.g. agricultural soil or other growth media or other media infested with insect pests or attractable to the pests for habitational or sustenance or propagational purposes, in any conventional fashion which permits contact between the insect pests and the phosphonothioates of this invention.
  • An alternative method of this invention comprises reacting a monohydroxy substituted aromatic hydrocarbon or mixtures thereof of the formula R'OH wherein R has the aforedescribed significance (e.g. phenol, the various cresols, such as o-cresol, m-cresol, p-cresol, commercial mixtures of cresols per se or in admixture with phenolyand.
  • R has the aforedescribed significance
  • phenol the various cresols, such as o-cresol, m-cresol, p-cresol, commercial mixtures of cresols per se or in admixture with phenolyand.
  • reaction temperature in the range of about 20 C. to about C.
  • reaction temperature in the range of about 20 C. to about C.
  • the respective reactants will be employed in substantially equimolecular proportions.
  • Example XIII Employing the procedure of Example XI but replacing o-ethylphenol with a substantially equimolecular amount of a commercial mixture of cresols having m:p:o weight ratio of approximately 5.4:2.9: 1.0 there is obtained a mixture of O-(cresyl) O-(4-nitrophenyl) methylphosphonothioates having the same weight ratio of mzpzo isomers. This material is insoluble in water.
  • the processes of this invention comprise reacting a hydroxy substituted aromatic compound of the formula A--OH with an alkylphosphonohalidothionate of the formula wherein R and Z have the aforedescribed significance and wherein A and B are unlike radicals of the group R and out) all wherein n is an integer from 0 to 1, wherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • n is an integer from to 1, wherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • An insecticidal composition comprising a phosphonothioate dispersed in an extending agent selected from the group consisting of solid and semi-solid extending agents, the composition containing 0.1 to 25 percent by weight of said phosphonothioate, the said phosphonothioate being an aryl alkylphosphonothioate of the formula awe wherein n is an integer from 0 to 1, wherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • An insecticidal composition comprising a phosphonothioate dispersed in a liquid extending agent, the composition containing 0.001 to 50 percent by Weight of said phosphonothioate, the said phosphonothioate being an aryl alkylphosphonothioate of the formula a. NO; '-0-1 -o R wherein n is an integer from 0 to Lwherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • An insecticidal concentrate comprising a phosphonothioate and an insecticidal adjuvant, said concentrate containing from to 95 percent by weight of the phosphonothioate, the said phosphonothioate being an aryl alkylphosphonothioate of the formula ll R -o 1 e-o- 5 wherein n is an integer from 0 to 1, wherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • An insecticidal concentrate comprising a phosphonothioate dispersed in an organic solvent therefor and having dissolved therein a minor amount of a surfactant, said concentrate forming an emulsion with water upon agitation therewith, said phosphonothioate being an aryl alkylphosphonothioate of the formula IS N02 wherein n is an integer from 0 to 1, wherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • An insectidical concentrate adapted to be made into a sprayable composition by the addition of water comprising a phosphonothioate in admixture with a watersoluble surfactant in the weight proportion of 0.1 to 15 parts of surfactant and suflicient ofi said phosphonothioate to make parts by weight, said phosphonothioate being an aryl alkylphosphonothioate of the formula mH wherein n is an integer from 0 to 1, wherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • the method of controlling insects which comprises contacting the insects with a toxic amount of a phosphonothioate of the formula wherein n is an integer from 0 to 1, wherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • n is an integer firorn 0 to 1, wherein R is a lower alkyl radical, and wherein R is an aromatic hydrocarbon radical of the benzene series containing 6 to 10 carbon atoms.
  • the method of controlling insects which comprises contacting the insects with a toxic amount of a phosphonothioate of the formula wherein R is an alkyl radical containing 1 to 2 carbon atoms and wherein R is selected from the group consisting of phenyl, o-tolyl and m-tolyl.
  • the method of protection of plants against insect attack which comprises applying to the plant an insecticidal amount of a phosphonothioate of the formula wherein R is an alkyl radical containing 1 to 2 carbon atoms and wherein R is selected from the group consisting of phenyl, o-tolyl and m-tolyl.
  • the method of controlling insects which comprises contacting the insects with a toxic amount of O-phenyl O-(4-nitrophenyl) methylphosphonothioate.

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US100502A 1961-04-04 1961-04-04 Aryl alkylphosphonothioates Expired - Lifetime US3085044A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL276759D NL276759A (cs) 1961-04-04
NL127250D NL127250C (cs) 1961-04-04
US100502A US3085044A (en) 1961-04-04 1961-04-04 Aryl alkylphosphonothioates
FR892655A FR1321686A (fr) 1961-04-04 1962-03-29 Alcanethiophosphonates d'aryle, insecticides contenant ces composés et procédé pour leur préparation
GB12796/62A GB948999A (en) 1961-04-04 1962-04-03 Nitro aryl alkylphosphonothioates
DK152462AA DK105008C (da) 1961-04-04 1962-04-03 Insecticid og fremgangsmåde til fremstilling af arylalkylphosphonthioater til anvendelse i insecticidet.
DEM58279A DE1226363B (de) 1961-04-04 1962-04-03 Alkylthiophosphonsaeurearylester enthaltende Insektizide
BR137691/62A BR6237691D0 (pt) 1961-04-04 1962-04-03 Processo para a preparacao de aril alquilfosfono-tioatos e composicoes inseticidas contendo os mesmos
DEM52365A DE1182659B (de) 1961-04-04 1962-04-03 Verfahren zur Herstellung von Alkylthiophosphonsaeurearylestern
BE615988D BE615988A (cs) 1961-04-04 1962-04-04

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BR (1) BR6237691D0 (cs)
DE (2) DE1226363B (cs)
DK (1) DK105008C (cs)
FR (1) FR1321686A (cs)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214333A (en) * 1964-03-18 1965-10-26 Ici Ltd Nematicides

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520393A (en) * 1947-12-31 1950-08-29 American Cyanamid Co 2-nitrophenyl dialkyl phosphates and thiophosphates
US2910402A (en) * 1958-02-21 1959-10-27 Du Pont Compositions and methods for destroying insects
US2967884A (en) * 1958-04-01 1961-01-10 Union Carbide Corp Preparation of acrylic acid esters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1050768B (de) * 1959-02-19 Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk Verfahren zur Herstellung von Phenylthionophosphonsäureestern
US2503390A (en) * 1948-07-01 1950-04-11 Du Pont Alkyl mono-nitrophenyl thionobenzene-phosphonates and insecticidal compositions containing the same
US2666777A (en) * 1950-03-08 1954-01-19 Du Pont Propyl p-nitrophenyl thionobenzenephosphonates
DE1026323B (de) * 1955-10-04 1958-03-20 Bayer Ag Verfahren zur Herstellung von insekticid wirksamen O, O-Dialkyl-S-phenyl-thionothiolphosphorsaeureestern
DE1111629B (de) * 1958-12-11 1961-07-27 Victor Chemical Works Verfahren zur Herstellung von Benzolthiophosphonsaeure-O-aethyl-O-p-nitrophenylester
NL133547C (cs) * 1959-01-07

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520393A (en) * 1947-12-31 1950-08-29 American Cyanamid Co 2-nitrophenyl dialkyl phosphates and thiophosphates
US2910402A (en) * 1958-02-21 1959-10-27 Du Pont Compositions and methods for destroying insects
US2967884A (en) * 1958-04-01 1961-01-10 Union Carbide Corp Preparation of acrylic acid esters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214333A (en) * 1964-03-18 1965-10-26 Ici Ltd Nematicides

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DE1182659B (de) 1964-12-03
BR6237691D0 (pt) 1973-05-17
NL127250C (cs)
DK105008C (da) 1966-08-01
DE1226363B (de) 1966-10-06
FR1321686A (fr) 1963-03-22
NL276759A (cs)
BE615988A (cs) 1962-10-04
GB948999A (en) 1964-02-05

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